The worst moment of last night’s debate involved moderator Candy Crowley interjecting her own fact-checking into an argument in which she was ultimately proven wrong. She back-tracked post-debate. But what’s worse is that several weeks ago, Crowley was arguing with the Obama administration about the same topic, by using the same exact argument that she fact-checked Romney on last night.

The most shocking exchange took place on the Benghazi attack that left the U.S. ambassador to Libya and three others dead.

Mr. Romney: “You said in the Rose Garden the day after the attack, it was an act of terror? It was not a spontaneous demonstration, is that what you’re saying.”

Mr. Obama made no defense. “Please proceed, governor.”

“I want to make sure,” Mr. Romney said. “Get the transcript,” the president said. Then Ms. Crowley jumped in to do her own fact-check, on the spot. “It — it — it — he did in fact, sir. … He did call it an act of terror.”

The truth is, he didn’t. The day after the attack, he said only this: “No acts of terror will ever shake the resolve of this great nation, alter that character or eclipse the light of the values that we stand for.” It took another two weeks before the White House would label the attack an act of terror.

After the debate, debate moderator Candy Crowley said Republican nominee Mitt Romney was “right in the main” but “picked the wrong word” on the Obama administration’s immediate response to the terrorist attack in Benghazi, Libya, that left four Americans dead.

What a weak defense for blatant bias.

What’s even more interesting is that Crowley sounded exactly like Romney a couple of weeks ago in debating the issue with Obama adviser David Axelrod.

On CNN’s “State of the Union” on September 30, Candy Crowley insisted David Axelrod, President Barack Obama’s chief strategist, was wrong when Axelrod tried to claim President Barack Obama called the Benghazi attack “an act of terror” on the day after.

“First, they said it was not planned, it was part of this tape,” Crowley said when Axelrod tried to spin her.

This was Crowley the journalist, unlike the pro-Obama advocate who moderated Tuesday’s debate between Obama and Mitt Romney and interjected herself into an argument between Obama and Romney on the exact same issue — and took Obama’s side.

During the debate, Crowley affirmed Obama’s assertion that he referred to the Benghazi attacks as acts of terror on the day after.

After Romney correctly said it took Obama 14 days before Obama said the the Benghazi attacks were acts of terror, Crowley took Obama’s side — to an ovation from the town hall audience — and she proclaimed Obama had indeed claimed the Benghazi attacks were acts of terror the day after the attacks in the White House Rose Garden.

On September 12, the day after the attacks, Obama did say the words “acts of terror” but he was not referring to the attacks that killed U.S. Ambassador to Libya Chris Stevens.